Analysis of surface parametrizations for modern photometric stereo modeling

Roberto Mecca; Emanuele Rodolà; Daniel Cremers

doi:10.1117/12.2182812

30 April 2015 Analysis of surface parametrizations for modern photometric stereo modeling

Roberto Mecca, Emanuele Rodolà, Daniel Cremers

Proceedings Volume 9534, Twelfth International Conference on Quality Control by Artificial Vision 2015; 95341B (2015) https://doi.org/10.1117/12.2182812
Event: The International Conference on Quality Control by Artificial Vision 2015, 2015, Le Creusot, France

Abstract

Tridimensional shape recovery based on Photometric Stereo (PS) recently received a strong improvement due to new mathematical models based on partial differential irradiance equation ratios.1 This modern approach to PS faces more realistic physical effects among which light attenuation and radial light propagation from a point light source. Since the approximation of the surface is performed with single step method, accurate reconstruction is prevented by sensitiveness to noise. In this paper we analyse a well-known parametrization² of the tridimensional surface extending it on any auxiliary convex projection functions. Experiments on synthetic data show preliminary results where more accurate reconstruction can be achieved using more suitable parametrization specially in case of noisy input images.

Citation Download Citation

Roberto Mecca, Emanuele Rodolà, and Daniel Cremers "Analysis of surface parametrizations for modern photometric stereo modeling", Proc. SPIE 9534, Twelfth International Conference on Quality Control by Artificial Vision 2015, 95341B (30 April 2015); https://doi.org/10.1117/12.2182812

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KEYWORDS

Picosecond phenomena

Light sources

Light

Signal attenuation

Mathematical modeling

Optical spheres

Palladium

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